Bad customer serviceUINILT

They delivered damaged study material and as far as i know when they collect them from unisa they are sealed but to me they were oped and they study material was wet, when I lodge the complaint they ask same questions that i have answered to previous consultants. All of them they promise that investigation is in process. Instead of having feedback they ask other same questions. I was promised for feedback now is no longer a feedback is questions after questions.